simple almost-auto-drain for office tank

Lifetime Member

I set up a small tank for my wife's office at work. I want it to be as "easy" as possible for her to do water changes. Have tank, then two buckets (one large reservior with fresh water, plus one smaller for waste water).

No sink, no tap water in vicinity.

The fill is no big deal, the drain I have to "design". Attached is my simple plan.

I would be grateful for feedback or suggestions for easier / common ways of doing this. Also, if stand pipe is good idea, how do I decide how tall it has to be?

Lifetime Member

Why is the pump needed? You could just use a siphon directly to the drain bucket, with a shut-off valve in it - open valve, water drains, close valve. The pump could then be used to pump in the replacement water.

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